OpenMetadata

Use when writing or editing React/TSX in `openmetadata-ui/src/main/resources/ui/src/` or `openmetadata-ui-core-components/`, before reaching for a raw `<div>` + Tailwind utility classes to build layout (flex rows/columns, grids, bordered panels with header/body/footer, separators), and before writing any Tailwind color class (`tw:bg-*`, `tw:text-*`, `tw:border-*`) or hex color value. Applies whenever the change adds or restructures a layout container or touches color/dark-mode styling, not to every div.

Build a new OpenMetadata connector from scratch — scaffold JSON Schema, Python boilerplate, and AI context using schema-first architecture with code generation across Python, Java, TypeScript, and auto-rendered UI forms.

Run `mvn spotless:apply` to fix Java checkstyle / formatting failures and verify the result. Run after authoring or modifying any `.java` files, or when CI reports a "Java checkstyle failed" / "Fix Java checkstyle" issue on a PR.

Run the ESLint + Prettier + organize-imports sequence that CI's `UI Checkstyle` jobs (`lint-src`, `lint-playwright`, `lint-core-components`) run — on just the files the PR changed — and fail if any file ends up with a diff. Run after authoring or modifying any `.ts`/`.tsx`/`.js`/`.jsx`/`.json` under `openmetadata-ui/src/main/resources/ui/src/`, `.../playwright/`, or `openmetadata-ui-core-components/src/main/resources/ui/src/`, or when CI reports a `UI Checkstyle` failure on a PR.

Run `mvn spotless:apply` to fix Java checkstyle / formatting failures and verify the result. Invoke after authoring or modifying any `.java` files, or when CI reports a "Java checkstyle failed" or "Fix Java checkstyle" issue on a PR.

Run the exact ESLint + Prettier + organize-imports sequence that CI's `UI Checkstyle` jobs (`lint-src`, `lint-playwright`, `lint-core-components`) run — on just the files the PR changed — and fail the task if any file ends up with a diff. Invoke after authoring or modifying any `.ts`, `.tsx`, `.js`, `.jsx`, or `.json` file under `openmetadata-ui/src/main/resources/ui/src/`, `.../playwright/`, or `openmetadata-ui-core-components/src/main/resources/ui/src/`, or when CI reports a "UI Checkstyle" job failure on the PR.

Meta-skill loaded at session start. Directs Claude to check for applicable OpenMetadata skills before starting any task. Ensures structured workflows are followed.

Use when opening or finalizing a GitHub PR for OpenMetadata. Walks through the repo PR template — linked issue, high-level design (for big PRs), unit/integration/Playwright tests + coverage, UI screen recording, and manual test steps — then drafts a fully-filled PR body and (optionally) creates the PR.

Use to review code changes with a two-stage process - first checking spec/requirements compliance, then code quality. Works on staged changes, branches, or PRs.

Deep reliability audit for OpenMetadata connectors — runs 7 investigation prompts (metadata, errors, auth, lineage, scale, synthesis, implementation) against connector standards

Use when starting a non-trivial feature, refactor, or multi-file change. Forces structured design thinking before writing any code - brainstorm approaches, get approval, then create a step-by-step implementation plan.

Use when implementing new features or fixing bugs to enforce test-driven development. Guides the RED-GREEN-REFACTOR cycle for Java (JUnit), Python (pytest), and TypeScript (Jest/Playwright) in OpenMetadata.

Use before claiming any task is complete. Requires running actual verification commands and showing evidence — no "should work" claims without proof.

Review an OpenMetadata connector against golden standards. Runs multi-agent analysis covering architecture, code quality, type safety, testing, and performance. When a PR number is given, automatically posts the quality summary to the PR description and a detailed review as a PR comment.

Use when debugging a failing test, build error, or runtime issue that isn't immediately obvious. Guides a 4-phase root cause analysis instead of random fix attempts.

Use after implementing any feature or fix to ensure comprehensive test coverage. Enforces 90% line coverage in openmetadata-service, integration tests for all API endpoints in openmetadata-integration-tests, and Playwright E2E tests for UI changes.

Generate robust, zero-flakiness Playwright E2E tests following OpenMetadata patterns. Creates comprehensive test files with proper waits, API validation, multi-role permissions, and complete entity lifecycle management.

Use when validating UI changes in a branch require Playwright E2E testing. Reviews branch changes, validates UI with Playwright MCP, and adds missing test cases.

Use when writing new Playwright E2E tests or adding test cases. Provides testing philosophy, patterns, and best practices from the Playwright Developer Handbook.

Build and deploy a full local OpenMetadata stack with Docker to test your connector in the UI. Handles code generation, build optimization, health checks, and guided testing.

Load all OpenMetadata connector development standards into context. Use before building or reviewing connectors to ensure consistent patterns.